Solve
-Alan Weighs 4 Times as Much as His Son $x$

Multiple Choice

Solve.
-Alan weighs 4 times as much as his son. Let $x$ represent Alan's weight. Write an expression for the weight of Alan's son.

A) $x-4$
B) $4 x$
C) $\frac{1}{4} x$
D) $\frac{4}{x}$